update for Issue #2064 (changed docblocks which return $this or only call a method that returns $this to @return CI_DB_class_name)
diff --git a/system/libraries/Zip.php b/system/libraries/Zip.php
index 9ecd0de..77cc45b 100644
--- a/system/libraries/Zip.php
+++ b/system/libraries/Zip.php
@@ -438,7 +438,7 @@
 	 * Lets you clear current zip data. Useful if you need to create
 	 * multiple zips with different data.
 	 *
-	 * @return	object
+	 * @return	CI_Zip
 	 */
 	public function clear_data()
 	{